A ruminant's heading off south of capital of Kenya, African city (7)

I believe the answer is:

kampala

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'city' is the definition.
(Kampala is an example)

'a ruminant's heading off south of capital of kenya african' is the wordplay.
'a ruminant' becomes 'impala' (impala is a kind of ruminant).
'heading off' means to remove the first letter.
'south of' is a charade indicator (letters next to each other).
'capital of kenya african' becomes 'ka' (I am not sure about this - if you are sure you should believe this answer much more).
'impala' with its first letter taken away is 'mpala'.
'mpala' after 'ka' is 'KAMPALA'.

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(Other definitions for kampala that I've seen before include "Capital of Uganda" , "Uganda's capital" , "Ugandan city" , "Ugandan capital" , "in East Africa" .)

I've seen this clue in The Times.

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